Fastener-setting machine



Dec. 23, 1930. T. PucAR 1,786,087

' FASTENER SETTING MACHINE Filed April 15, 1929 a Sheets-Sheet. 1

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wuemto'c Teodare Ruar Dec. 23, 1930. T. PUCAR 1,786,087

FASTENER SETTING MACHINE Filed April 15, 1929 3 sheets sheetfz awwento'cHeaders Pam! Dec. 23, 1930. T. PUCAR 1,786,087

FASTENER SETTING MACHINE Filed April 15, 1929 S Sheets-Sheet. 3

avweutoz Theodore Pacer 35 430 QM M401 Patented Dec. 23, 1930 UNITEDSTATES PATENT OFFICE THEODORE PUCAR, OF BROOKLYN, NEW YORK, ASSIGNOR TOEDWIN B. STIMPSON COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEWYORK FASTENER-SETTING MACHINE Application filed April 15, 1929. SerialNo. 355,238.

This invention relates to machines for driving double-pronged fasteners,such as staples and provides certain novel features of construction andoperation of such machines.

In stapling machines heretofore known the driving plunger has beenmounted on a U- shaped head, and the staples have been fed so that theyarrive at the driving pocket in a position at right angles to theU-shaped head. Such an arrangement is satisfactory for many types ofwork but when it is desired to set the staples in a long poletransversely to the axis of the pole, it is necessary to feed the polein a direction parallel to the U-shaped head and the free space providedby the head is often insufficient to permit the required feedingmovement.

A primary object of the present invention is to provide a machine inwhich the staples are fed in such a way that they arrive at the drivingpocket in a position parallel to the U-shaped head. With thisarrangement a pole or similar long article can be fed at right angles tothe U-shaped head, and staples can easily be inserted transversely tothe axis of the pole at any point along its length.

Other objects and advantages of the invention will become apparent asthe description proceeds.

lVhile a preferred form of the invention has been disclosed for purposesof illustration, it should be understood that various changes may bemade in the structure and arrangement of parts without departing fromthe spirit and scope of the invention as hereinafter set forth andclaimed.

In the drawings:

Fig. 1 is a side elevation of a machine embodying the invention.

Fig. 2 is an enlarged detail of part of the operating mechanism.

Fig. 3 is an enlarged detail showing the mechanism for feeding therivets to the plunger.

Fig. 4 is a section on line 44 of Fig. 3.

Fig. 5 is a fragmentary view looking in the direction of the arrow 5 ofFig; 8.

Fig. 6 is a View similar to Fig. 5 but showing the parts in anotherposition.

Fig. 7 is an enlarged view similar to Fig. 5

but showing a still different position of the parts. I

Fig. 8 is a perspective view of the cut-0E slide.

Fig. 9 is a perspective view of the block attached to the lower end ofthe feed arm.

Fig. 10 is a perspective view of the noseplece.

Referring to the drawings more particularly the numeral 10 indicates thepedestal of the machine, which supports a U-shaped head 11. A-drivingplunger 12 is mounted on the head for vertical reciprocation and isoperated from the pedal 13 by suitable lever mechanism.

The staples are placed in the hopper 14 and are fed by the rotatabledrum 15 to the guideway 16, from which the cut-off slide 20 permits themto drop one at a time to the driving position under the driving plunger.Suitable connections are provided to operate the drum 15 and cut-otl'slide 20 at proper timed intervals in the sequence of operations of themachine.

Arm 40 is pivoted at 41 and, when pedal l8'is depressed, this arm swingsin a clockwise direction This movement of arm 40 effects the operationof several parts, viz: driver 12 is depressed through the action ofconnecting link 42; pawl 43 is ad vanced on ratchet wheel 44; and slide20 is moved to the right, viewed as in Fig. 2 (to the left viewed as inFigs. 4Z'). he operation of slide 20 is through rocker arm 45. rockerarm 46, and spring connecting member 47. lVhen pedal 13 is released itis moved upwardly by spring 48 (Fig. 1), and arm 40 swings in acounter-clockwise direction (Fig.

2). This movement restores driver 12 to its uppermost position. returnsslide 20 to its left-hand position (Fig. 2), and causes pawl 43 torotate ratchet wheel 44 and drum 15. Drum 15 operates in a manner wellknown in the art to arrange the staples deposited in hopper 14 anddeliver them in regular order to guideway 16.

As the staples leave the drum 15 they pass down the guideway with theirheads retained in the guideway and the long axis of the staples parallelto the guideway, and the present im'ention relates particularly to meansfor turning the staples so that they arrive in driving position at rightangles to the guideway, or parallel to the U-shaped head of the machine.This turning of the staples is accomplished by the co-operation of thecutoff slide and the nose-piece of the guideway in a manner that willnow be described.

At the lower end ot' the guideway a block 18, shown in perspective inFig. 9, is attached to the feed arm of the machine. This block 18 isformed on its under side with a channel 19 in which the cut-elf slide 20is slidingly mounted. Plates 21 and 22 are attached to the under side ofblock 18 and assist in keeping the cut-off slide in position, while thespacedapart, undercut edges of these plates form a continuation of theguideway 16 and guide the staples to the cut-off slide.

Below the cut-off slide the nose-piece 23 is attached to the lower sideof the block 18. This nose-piece, as shown in Fig. 10 is provided withdeep slots 24 and 25 which define between them a slide 26. The slide 26is cut down so that its upper surface is spaced below the upper surfaceof the ren'lainder of the nose-piece. and one en d of the slide isformed into a point 27. These parts are so arranged that when thenose-piece is properly secured in its place the point 27 is alined withthe center of the guideway 16, and the slide 26 is spaced from plate 18sufficient distance to permit the head of the staple to ride over theslide while the prongs of the staple extend into the slots 24.- and 25.

The cut-off slide 20 is provided with fingers Q8 and 29 which travelover the outside of plates 21 and 22 and operate on the prongs of thestaples. and the slide also carries a turning lUQ 30 which trave sinside plate 22 and operates on the heads of the staples.

As the cut-off slide 20 reeiprocates it permits the staples to drop oneat a time from the guideway 16 and rotates them through an angle of sothat they can ride down the slide 26 to the driving position in whichposition they are at right angles to the guideway 16. The details ofthis turning operation will be clear from an inspection of Figs. 3 to 7inc usive.

hen the driving plunger 12 in depressed position, the cut off slide is nthe extreme left hand position as shown in Figs. 4 and 5, with thefinger 29 extending between the prongs of staple and retaining thestaple in a preliminary position.

As the cut-off slide moves to the right-hand end of its stroke,approximately illustrated in Fig. (3, the finger 29 is removed from itsretaining position between the prongs of the lowermost staple. and thisstaple falls under the weight of the column of staples above it. Whenthe cut-off slide is in its right-hand position the sloping face of thefinger 28 comto positively t t ple into the and operates on the staplesin the manner shown in Fig. 7. During this movement the finger 28recedes permitting the upper end of the staple to. tilt toward the leftunder the weight of the column of rivets, and this tilting movement iscompleted by the turnin ing 30 engaging the head of the staple. Thelowermost staple is now free from the cut-off slide and has been turnedat right angles to the guideway 16, and being alined with the slide 26,it passes down over the slide to the driving position.

lileanwhiie the finger 29 has engaged between the prongs of the nextstaple, and the parts have once more resumed the position of Figs. 3 and5.

After the staple leaves the slide 26 it f lls onto the movable support31, which engages under the head of the rivet and maintains it in a.vertical position during the fir t part of the driving operation. As thel:'i-.'i1igplu1iger descends it engages the staple. removes it from thesupport -31 and drives it through the split hold poclret 32 and into thework.

The advant: JCS of this new machine become apparent when performing suchwork as attao ing branches 33 to the trunk of an artificial Christmastree til. In this case the trunk is a long pale and the staples must heset transversely of the trunlt. Ti ith the present machine the trnnl: 3(2: or be fed parallel to the guideway for the staples whirl: m ans I,tra tl' shaped head and is therefore eniii tree from any lin'iitationsof movement due .o contact with parts of the machine.

The machine ca be used for setting any double-pronged fasteners thefasteners being fed down the main guideway with the fasteners sopositioned that a line passing through both prongs of a fastener is pa'allcl to the guideway. The operating mechanism turns the fastenerthrough 90 to a position in which the line passing through both pron ofthe fastener is transverse to the guideway.

I claim:

1. A fastener-setting machine comprising a head having upper and lowerhorizontal branches; an anvil mounted on the lower horizontal branch; adriving plunger mounted on the upper horizontal b anch: afastenerreceiving device for receiving double pron god staple-likefasteners; a guideway adapted to guide the fasteners from thefastener-receiving device with a line passing through both prongs of afastener parallel to the guioeway, said line being perpendicular to eachof the fastener prongs; a slide adapted to carry the fasteners to thedrivir position with said line transverse to the guideway; and 111 21118that the trunk is .66 sversoiy to e for turning the fasteners andtransferring them from the guideway to the slide.

2. A fastener-setting machine comprising a head having upper and lowerhorizontal branches, an anvil mounted on the lower horizontal branch, adriving plunger mounted on the upper horizontal branch, afastener-receiving device, a guideway adapted to guide the fastenersfrom the fastener-receiving device with a line passing through bothprongs of a fastener parallel to the guideway, a slide adapted to carrythe fasteners to the driving position with said line transverse to theguideway, and a cut-off slide for transferring the fasteners from theguideway to the slide.

3. A fastener-setting machine comprising a head, a driving plungermounted on the head, a sorting drum, a feed arm mounted on the head, thefeed arm being formed with a guideway adapted to receive double-prongedfasteners from the drum with a line passing through both prongs of afastener parallel to the guideway, a nosepiece attached to the feed armand formed with a slide adapted to support the fasteners with said linetrans verse to the axis of the guideway and to guide them to drivingposition, a cutoff slide reciprocable between the guideway and theslide, the cut-off slide being adapted to feed the fasteners one at atime from the guideway to the slide and to assist in turning thefasteners.

i. A fastener-setting machine comprising a head; a driving plungermounted on the head; a holding device adapted to hold the fasteners indriving position. under the plunger; a fastener-receiving device forreceiving double pronged staple-like fasteners; a guideway adapted toguide the fasteners from the fastener-receiving device with a linepassing through both prongs of a fastener parallel to the guideway, saidline being perpendicular to each of the fastener prongs; a slide adaptedto carry the fasteners to the holding device with said line transverseto the guide way; and means for feeding fasteners from the guideway tothe slide.

5. A fastener-setting machine comprising a head, a driving plungermounted on the head, a holding device adapted to hold the fasteners indriving position under the plunger, a fastener-receiving device, aguideway adapted to guide the fasteners from the fastener-receivingdevice with a line passing through both prongs of a fastener parallel tothe guideway, a slide adapted to carry the fasteners to the holdingdevice with said line transverse to the guideway, and a cut-0E slide fortransferring fasteners from the guideway to the slide.

6. A fastener-setting machine comprising a head having upper and lowerhorizontal branches, a driving plunger mounted on the head, a holdingdevice adapted to hold the fasteners in driving position under theplunger with a line passing through both prongs of a fastener parallelto the horizontal branches of the machine head, a fastener-receivingdevice, a guideway adapted to guide the fasteners from thefastenerreceiving device with said line transverse to the horizontalbranches of the machine head, a slide adapted to guide the fastenersfrom the guideway to the holding device with said line parallel to thehorizontal branches of the machine, andmeans for feeding fasteners fromthe guideway to the slide.

7. A staple-setting machine comprising a head having upper and lowerhorizontal branches, a driving plunger mounted on the head, a holdingdevice adapted to hold the staples in driving position under the plungerwith the long axis of the staple heads parallel to the horizontalbranches of the machine head, a staple-receiving device, a guidewayadapted to guide the staples from the staplereceiving device with thelong axis of the staple-heads transverse to the horizontal branches ofthe machine head, a slideadapted to guide the staples from the guidewayto the holding device with the long axis of the staple heads parallel tothe horizontal branches of the machine, and a cut-off slide fortransferring staples from the guideway to the slide.

8. A staple-setting machine comprising a head having upper and lowerhorizontal branches, a. driving plunger mounted on the head, a holdingdevice adapted to hold the staples in driving position under the plungerwith the long axis of the staple heads paral lel to the horizontalbranches of the machine head, a staple-receiving devic a guidewayadapted to guide the staples from the staple-receiving device with thelong axis of the staple-heads transverse to the horizontal branches ofthe machine head, a slide adapted to guide thestaples from the guidewayto the holding device with the long axis of the staple heads parallel tothe horizontal branches of the machine, and a cu -off slide reciprocablebetween the guideway and the slide, the cut-off slide being adapted tofeed the staples one at a time from the guideway to the slide and toassist in turning the staples.

9. A machine for handling double pronged fasteners comprising a firstguideway for guiding the fasteners in the direction of a line passingthrough both prongs of a fastener, a second guideway for guiding thefasteners in a direction transverse to a line passing through bothprongs of a fastener, and means comprising a reciprocating slide forturning the fasteners and transferring them from the first guideway tothe second guideway.

10. A machine for handling double pronged headed fasteners comprising afirst guideway for suspending the fasteners by their heads and guidingthem in the direction of a line passing through both prongs of afastener, a second guideway comprising a slide adapted to be straddledby the fasteners and guide them in a direction transverse to a linepassing through both prongs of a fastener, and means to turn thefasteners one at a time and transfer them from the first guideivay tothe second guideway.

11. A machine for handling double pronged fasteners comprising a firstgravity guideway for guiding the fasteners in the direction of. a linepassing both prongs of a fastener, a second gravity guideway for guidingfasteners in a direction transverse to a line passing through bothprongs of a fastener, and means presenting cam surface to engage thefasteners at the lower end of said first guideway and turn the same asthey descend under the action of gravity to thereby start them into saidsecond guide- Way.

12. A machine for handling double pronged fasteners comprising a firstgravity guideivay for guiding the fasteners in the direction of a linepassing through both prongs of a fastener, a second gravity guide- Wayfor guiding fasteners in a direction transverse to a line passingthrough both prongs of a fastener, means presenti a cam surface toengage each fastener at the lower end of said first guideiray and turnthe same as it descends under the action of gravity to thereby start thefastener into the second guideway, and means to arrest the descent offasteners in the first guideway While a fastener is being transferredfrom said first guideway to said second guideway.

In testimony whereof I afiix' my signature.

THEODORE PUCAR.

